Brush-holder



(No Model) H. GEISENHONER.

BRUSH HOLDER.

No. 585,746 Patented July 6,1897.

WITNESSES- INVEN U 9. fi

UNITED STATES PATENT OFFICE.

HENRY GEISENIIGNER, OF SCHENEGTADY, NEW YORK, ASSIGNOR TO THE GENERALELECTRIC COMPANY, OF NEIV YORK.

BRUSH-HOLDER.

SPECIFICATION forming part of Letters Patent No. 585,746, dated July 6,1897.

Application filed November 20, 1896. Serial No. 612,850. (No model.)

To aZZ whom it may concern: clamp 8, adapted to bear against the end ofBe it known that I, HENRY GEIsENHoNER, said holder 2. The carbon brushes6 are each a citizen of the United States, residing at mounted inasupporting-piece 12, connected Schenectady, in the county ofSchenectady, by arms 13 to clamping-jaws 14, gripping the 5 State of NewYork, have invented certain stud 4L, and secured thereto by a screw 15,new and useful Improvements in Brush-Holdhaving wings 16, by means ofwhich the jaws ers, (Case No. 483,) of which the following is 14 may betightened together by a spannera specification. wrench or other suitabletool.

This invention relates to brush-holders for The carbon brush 6 ismounted in the sup- IO dynamo-electric machines, and has especialporting-piece 12 so as to be freely movable reference to holding in afixed position the vertically therein. Upon the top of the carstud onwhich the brush-holders are mountbon brush 6 rests the outer end of thespringed and to releasing the stud, so that it may arm 17, havingsecured thereto a curved arm be rotated in its support. 18, having itsouter end bearing against the 15 The invention has for its object tohold outer end of the spring-arm 17. The presfrom rotation in a fixedposition a brushsure of the carbon brush 6 against the com holder studand prevent it from turning, and mutator 7 is adjusted by means of thethumbalso to permit of its being released to rotate screw 19, extendingthrough and connecting in its support when it is desired to swing thethe jaws 14. As shown, the clamp Sis mount- 2o brush-holders into andout of operative posied on the end of each arm 3 of the support tion.ing-frame 2, and from one end of the stud 4:

In the accompanying drawings, Figurel is extends the lead to the minuspole, as shown a detail view of a portion of a dynamo-elecat the rightin Fig. 1, and a lead to the plus trio machine, showing carbon-brushholders pole, as shown at the left in Fig. 1.

2 5 with the invention applied. Fig. 2 is an en- After the carbon-brushholders5 are mountlarged detail side view of one of the brushed andadjusted in suitable position on the holders and its support shown inFig. 1. Fig. stud 4 the latter is rigidly secured in posi- 3 is a frontview of the same, and Fig. 4. is tion by tightening the set-screws 11against an enlarged detail view of a portion of the the end of each arm3 of the frame 2, thus o brush-holder support and stud and clampsedrawing the Wings 10 outwardly against the securing the stud fromturning. stud 4L and rigidly holding the stud 4 in po- 1 indicates aportion of the frame of a dysition. By means of this construction afternamo-electric machinehaving mounted therethe carbon brushes have beenmounted and on, as shown in Fig. 1, a couple of supportadjusted in thedesired position relatively to 5 ing-frames 2, shown in Fig. 3 asconsisting the commutator they are securelyheld in such of two divergingarms 3, having mounted in position by tightening the clamps 8, as settheir lower ends the rotatable cylindrical forth. The advantage of thisconstruction is stud 4, on which are mounted three carbonas follows: Inaddition to firmly holding the brush holders 5, each carrying a carbonbrush stud from rotation when the brushes are in 0 40 6, bearing againstthe commutator 7. operative position, when it is desired to turn 8 is aclamp (shown specially in Fig. 4) the brush-holders out of position theclamps which is composed of a piece of metal formed 8 may be released,thereby permitting the with the middle portion 9 and rearwardlystud atto be rotated and the brush-holders to extending wings 10, perforated topermit the be lifted out of operative position; or in- 5 5 stud 1 to beslid through the wings 10. The stead of releasing the clamps 8 a singlebrushmiddle portion 9 of the clamp 8 when placed holder may be releasedindividually and in position abuts against the lower projectturned backon the stud without affecting the ing end of arm 3 of the holder 2, andthe other brush-holders. wings 10 project upon each side of and hear Iclaim- 50 against the sides of said arm 3. 11 are set- 1. In acarbon-brush holder, a rotatable screws mounted in the middle portion 9of stud, one or more brush-holders adapted to be rotated 011 andadjustably held in fixed position on said stud, and means for adjustablyclamping and holding in fixed position said stud, as set forth.

2. In a carbon-brush holder, a rotatable stud, one or more brush-holdersadapted to be swung on said stud and adjustably held in fixed position,a clamp engaging the stud, and means for tightening the clamp and studin its bearings and holding the latter from rotating, as set forth.

3. In a carbon-brush holder, supportingarms, a rotatable stud mounted onand adapted to rotate in said arms,brush-holders mounted upon andadapted to swing independently on and be secured in fixed position onsaid stud, clamps engaging the said stud-supporting arms, and means forclamping and adjustablyholding the stud in fixed position in itsbearings, as set forth.

I. In a brush-holder, a main support, arotata'ble stud mounted in saidmain support, brush-holders mounted 011 said stud and adapted toindependently swing thereon, with means for adjustably holding them infixed position on said stud, clamps engaging the main support and thestud, and set-screws for drawing and tightening the clamps and stud intofixed position on the main support, as set forth.

In witness whereof I have hereunto set my hand this 0th day of November,1816.

HENRY GEISENI-IONER.

Witnesses:

B. B. IIULL, J. LE D. LANGDON.

